Regarding exercise, I would like people to enjoy doing it together rather than to do hard-core competition with each other.
こんにちは。
ご質問ありがとうございます。
"Regarding exercise,"=「運動に関しては」
"I would like people to enjoy doing it together"=「人々が一緒に楽しくやって欲しい」
"rather than to do hard-core competition with each other."=「お互いガチガチ対戦をするよりも。」
ご参考になると幸いです。